Is Lead Poisoning Still a Problem?

Transcription

1 Is Lead Poisoning Still a Problem? Lisa Menillo MD St. Francis Hospital and Medical Center Co-Director Hartford Regional Lead Treatment Center Assistant Professor Pediatrics University of Connecticut Medical School 1

3 Is Lead Still a Problem? Objectives: Understand the health effects of lead Understand AAP screening guidelines Review CT State Lead Law and the role of the clinician Understand services provided 3

4 Figure 1. MSCA Scale Scores at the age of four years, According to blood lead concentration at three years of age. Port Pirie, Australia 537 children BLL s done at birth,6, 15, 24 months then yearly. NEJM 1988;319;

5 Cincinatti: Cognitive deficits and lead levels below 10 ug/dl 4,853 children Inverse relationship with lead level and performance on arithmetic and reading. 1 point decrease in reading score for every 1ug/dl increase in blood lead level. Public Health Reports Nov/Dec 2000 Vol 115 5

10 Risk Assessment Tool Does your child live in or regularly visit a house built before 1978? Does your child live in or regularly visit a house built before 1978 that is being or has recently been renovated or remodeled? Does your child have a sibling or playmate who has or had lead poisoning? Does your child live with an adult whose job or hobby involves exposure to lead? Does your child live near heavy traffic areas, a hazardous waste site or incinerator, industry or an active lead smelter or other industry likely to release lead into the environment? Does your child have pica or other frequent hand to mouth activity? 10

11 Screening Questionaire in Connecticut Schonfeld from CT 1085 children in 4 private practice settings Most with private insurance 9 children identified with elevated BLL s by lab testing 2 children identified by questionnaire 11

12 Screening Recommendations AAP 2005 Screen all Medicaid and Medicaid eligible children at 1 and 2 years of age. Screen up to 72 months if never screened before. For non Medicaid eligible children look to state or municipality policy. If none exists: universal screening Screen all refugees, immigrants, and international adoptees. 12

13 Refugees, Immigrants, and International Adoptee April 2000 Manchester NH, Sudanese girl died with BLL 392 New Hampshire looked at 92 refugee children: 14% had elevated BLL at both initial and 6 month follow up testing 10.9% had elevated BLL at initial screening only 29.3% were not elevated at screening but were elevated at follow up. 13

14 Refugees, Immigrants, International Adoptees At risk because: Presence of lead hazards Old housing Behaviors that increase exposure Leaded gasoline from country of origin, lack of knowledge about lead, malnutrition 30% of refugees have elevated lead levels after resettlement Federal regulations call for medical evaluation within 90 days of arrival Follow up venous test 3-6 months after initial screen to assess exposure after resettlement. 14

15 Cultural Sources of Lead 17 month old with BLL 22ug/dl, home negative, sindoor and bindi noted on mom and baby. 10 month old, family from Pakistan with VPb of 54ug/dl, due to Surma use on eye 3 year old from Pakistan with VPb 104ug/dl from imported spices Recent Cases 15

19 9 to 35 months A critical time Children become more mobile Children naturally have hand to mouth activity. Increased absorption A time of rapid brain growth Peak Pb levels months of age. 19

20 Lead Screening by providers Public Act 07-2 Effective January 1, 2009 Any child age 36 months to 72 months of age should be screened if not screened before or if clinically indicated. 20

21 Clinical Indications to test for Lead Clinical indications to test: Poisoning Neurologic symptoms such as unexplained seizures Developmental delays including behavior problems, hyperactivity GI symptoms such as abdominal pain, chronic diarrhea, or constipation. Pica Growth failure History of anemia History of parasites Hearing loss 21

22 Childhood Lead poisoning Prevention Public Act 07-2 Effective January 1, 2009 Medical risk assessment should be conducted at least annually but also as indicated on any child 36 to 71 months of age. 22

25 Childhood Lead Poisoning Prevention Public Act 07-2 Effective January 1, 2009 The local health department shall provide information to the parent or guardian of a poisoned child with a lead level greater than 10 about: lead, measures to reduce exposure, laws of lead abatement and information about potential eligibility for service for children from birth to three years of age. 25

26 Regional Lead Treatment Centers 1994 Two Regional Lead Treatment Centers were established: Hartford and Yale-New Haven. Provide multi-disciplinary culturally sensitive care including medical evaluation and treatment, developmental evaluations, social service support, outreach teaching and assistance with relocation. Lead Clinic medical staff are available for consultation to medical providers by phone or by visit. We will accept children with levels over 5ug/dL. 26

28 The Lead Safe House Social Service, Outreach, and LSH manager on site. LAMPP staff also on site. Close to Treatment Centers at SFH and CCMC in Hartford. We arrange school transportation We provide assistance with relocation Parent meetings are held around issues important to parents. 28

29 29

30 Childhood Lead Poisoning in Connecticut 2010 Surveillance Report Overview Is Lead Poisoning Still A Problem? May 9, 2012 Jimmy Davila 30

31 Percentage of children 1-2 years of age who had a lead screening, by calendar year Connecticut

32 Percentage of children under 6 years of age who had a lead screening, by calendar year Connecticut

33 33

34 Connecticut Towns and Screening Rates, Children 1 and 2 Years Old

35 Connecticut Towns and Screening Rates, Children under

36 Percentage of children who have had at least one/two screenings by 18/36 months of age, by year of birth 36

37 Number of children under 6 years of age with elevated blood lead, CY

38 (5401) Number of children reported in parentheses Percentage and number of children under 6 years of age with blood lead 5 g/dl 38

39 Percentage of children under 6 years of age with elevated blood lead, by race Connecticut CY

40 Percentage of children under 6 years of age with elevated blood lead, by ethnicity Connecticut CY

41 41

42 Age of housing as a percentage of overall housing stock CT and U.S. 42

46 Objectives Understand in-office lead testing Review reimbursement for lead testing Understand various treatments for elevated lead levels 46

47 Childhood Lead Poisoning Prevention Public Act 07-2 Effective January 1, 2009 Pediatric providers shall conduct lead screening at least annually for each child 9 to 35 months of age. Screening is either a capillary or venous blood draw. 47

48 State of Connecticut Law Beginning January 2009: Sec. 38a-535. Mandatory coverage for preventive pediatric care and blood lead screening and risk assessment. (b) Each group health insurance policy providing coverage of the type specified in subdivisions (1), (2), (4), (6), (11) and (12) of section 38a-469 delivered, issued for delivery or renewed on or after October 1, 1989, or continued as defined in section 38a-531, on or after October 1, 1990, shall provide benefits for preventive pediatric care for any child covered by the policy or contract at approximately the following age intervals: Every two months from birth to six months of age, every three months from nine to eighteen months of age and annually from two through six years of age. Any such policy may provide that services rendered during a periodic review shall be covered to the extent that such services are provided by or under the On and supervision after January of a 1, single 2009, physician each such during policy shall the also course provide of one coverage visit. for blood lead screening and risk assessments ordered by a primary care provider pursuant to section 19a-111g. Such benefits shall be subject to any policy provisions which apply to other services covered by such policy. 48

49 Benefits of Lead Screening 49 CT children are exposed to lead due to old housing Identify children exposed to lead Prevent further elevation of blood lead level Evidence of societal and cost benefits if lead levels were lower 1 Compliance with the law 1 Muennig, P. The Social Costs of Childhood Lead Exposure in the Post-Lead Regulation Era. Arch Pediatr Adolesc Med. (2009) 163:

50 New Roadblock to Lead Screening 50 CT State Laboratory is no longer providing this service for all children* *Note: CT State Lab will provide testing for children without insurance

51 Barriers of Sending Children to Outside Laboratories for Lead Screening Inconvenient for family, who must take child to another site/laboratory to have blood drawn Compliance issue Amount of blood required is 0.5 ml Outside laboratories may require venous draw 51

52 Barriers In-Office Lead Testing Requires office personnel Some MCOs do not reimburse in-office testing All Results must be reported to the state lab 52

53 Advantages of In-Office Lead Testing Convenience for patient Smaller amount of blood required, 50 µl Immediate results for family Allows education for at-risk families at visit Perfect complement to hemoglobin testing. It allows for another reimbursable CPT code Helps comply with state mandate 53

61 CDC Recommendations The most recent CDC recommendations have added: For a child whose blood lead level is approaching 10µg/dL, more frequent lead screening might be appropriate, particularly if the child is < 2 years of age and was tested at the start of warm weather (when blood lead levels tend to increase, or is at high risk for lead exposure. (CDC 2007) More research needs to be done in this area of screening children with lead levels < 10 µg/dl in order to offer more specific recommendations. 61

62 What if Lead Levels are 5-9 µg/dl? No lead level is considered safe Identifies children exposed to lead Continued lead screening is appropriate. Allows removal of lead source before further elevation Early follow up of lead level at 1-3 months initially Later follow up every 3-6 months until lead level is < 5 µg/dl. 62

63 Treatment /Management Environmental investigation of home Test paint, water, dust, soil Lead Education for family Identify and remove source of lead Temporizing measures to decrease lead exposure Test for iron deficiency and treat, if appropriate Neurodevelopmental monitoring Repeat lead testing Home abatement/remediation Chelation therapy for a lead level 45µg/dL 63

65 SUCCIMER or CHEMET Oral administration makes it easier to give TID for 5 days, then BID for 14 days Must be in lead safe environment Need to be certain child is tolerating medication Side effects: Neutropenia, elevated LFT s, rash, nausea Lead treatment centers are available for consultation of drug administration 65

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